GIL metal particle detection method based on ultrasonic guided wave

• Main Authors: ZHANG SAIPENG, JIANG LU, SI CHANGJIAN, LI SHOUXUE, CAO SEN, TAI YUFENG, GONG MINGCHEN, WANG KAI, YANG DAIYONG, JIAO LIXIN, YU HUA, LIU DAN, ZHAO QIMING, HE QIUYUE, LIU HONG, LIU JUNBO, ZHAO CHUNMING, WANG YANG, CHEN JIEYUAN, YU QUNYING, LIU CHUNBO, LIANG JIANQUAN
• Format: Patent
• Language: Chinese; English
• Published: 24.05.2024
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention relates to a GIL metal particle detection method based on ultrasonic guided waves, and belongs to the technical field of state monitoring of ultra-high-voltage and extra-high-voltage power transmission and transformation equipment. A GIL metal particle detection system based on ultrasonic guided waves is adopted, structural parameters of the outer diameter and the inner diameter of a GIL are input, and the frequency and the mode of the guided waves transmitted by an ultrasonic guided wave transmitting module are selected; an ultrasonic guided wave transmitting and receiving module transducer is installed, the positions of the ultrasonic guided wave transmitting and receiving module from the end face of a near-side insulator are measured, transmitting of ultrasonic guided waves is controlled through a data processing module, the received guided waves are analyzed and processed, and whether the GIL contains metal particles or not is judged. The device has the beneficial effects that high-sensitivi